You can you just need to drill out the dimples on the end of the Magazine tube... Well with the expresses you do.

I picked up a Police Magnum after a big Police Trade in. Got it for $198 and it was damn near brand new. Police Magnums are worth every bit of their reputation. I love a good pump shotgun. Autoloaders are fun but there is just something about a pump gun that makes me happy.

I completely set mine up for an HD gun and love it. It stays out of the safe when Im home and my Glock 19 is what I use to get to it.

"What country can preserve its liberties if its rulers are not warned from time to time that their people preserve the spirit of resistance?" -Thomas Jefferson-

"Our rights come from our humanity and may not be legislated away -- not by a vote of Congress, not by the consensus of our neighbors, not even by agreement of all Americans but one." Judge Andrew P. Napolitano

I know this is from another site (don't be mad at me it's just the best place I've seen with this info).

But Like I said you can drill out the dimples and smooth them out with a dremel or file and re-blue. They need to be smoothed out so the Magazine or shells don't get caught up on any loose fragments left over from drilling and they will just glide through the tube.

I think that's the best way and I think there is a couple more ways to do this. I have done it to a couple of them so I am by no means an expert. I just know how to do it.

"What country can preserve its liberties if its rulers are not warned from time to time that their people preserve the spirit of resistance?" -Thomas Jefferson-

"Our rights come from our humanity and may not be legislated away -- not by a vote of Congress, not by the consensus of our neighbors, not even by agreement of all Americans but one." Judge Andrew P. Napolitano

Yeah most models you don't but the newer 870 Expresses have the dimples for some reason not really sure why.

"What country can preserve its liberties if its rulers are not warned from time to time that their people preserve the spirit of resistance?" -Thomas Jefferson-

"Our rights come from our humanity and may not be legislated away -- not by a vote of Congress, not by the consensus of our neighbors, not even by agreement of all Americans but one." Judge Andrew P. Napolitano